Merge branch 'master' into patch-1

Author: davidpanofsky

README.md

@@ -38,7 +38,8 @@ The following attributes are required for each user:
   - 'on_create' will only set the password for newly created users.
 * group - Optional primary group override.
 * groups - A list of supplementary groups for the user.
-* profile - A string block for setting custom shell profiles
+* append - If yes, will only add groups, not set them to just the list in groups (optional).
+* profile - A string block for setting custom shell profiles.
 * ssh_key - This should be a list of SSH keys for the user (optional). Each SSH key
   should be included directly and should have no newlines.
 * generate_ssh_key - Whether to generate a SSH key for the user (optional, defaults to no).

tasks/main.yml

@@ -17,6 +17,7 @@
     group: "{{item.group | default(item.username if users_create_per_user_group else users_group)}}"
     # empty string removes user from all secondary groups
     groups: "{{item.groups | join(',') if 'groups' in item else ''}}"
+    append: "{{item.append | default(omit)}}"
     shell: "{{item.shell if item.shell is defined else users_default_shell}}"
     password: "{{item.password if item.password is defined else '!'}}"
     comment: "{{item.name if item.name is defined else ''}}"